由电位时间曲线确定阴极保护电位

DETERMINE CATHODIC PROTECTION POTENTIAL BY CONSTANT CURRENT RISING POTENTIAL-TIME CURVE

提出了一种新的阴极保护电位确定方法,即采用恒电流阴极极化法从尹φ-f曲线上将金属表面膜还原的动力学电位作为阴极保护电位进行了探讨;测定了Fe,Cu,Zn,Ni,Sn,Pb等多种金属在人造海水中和KCl溶液中的保护电位,并进行了Fe在人造海水中的阴极保护对比试验。

The protection potential of Fe, Zn , Cu , Ni, Sn. in man-made seawater and in aqueus potassium chloride was measured by using constant current cathodic polarization methode, and the analysis of p-t curve.reduction kinetic potential of metallic surface film was regarded as cathodic protection potential. The cathodic protection constant experiment od iron in man-made seawater was done.